Explanation
An incorrect IP route is the most likely reason for the scaling failure, as it prevents the communication between the on-premises and cloud cluster nodes. The ping output shows that the DNS entry for cluster2.comptia.containers.com is resolved to an IP address in the cloud environment (192.168.100.128), but the request times out, indicating a network connectivity issue. An incorrect proxy entry, an offline cluster node, or an incorrect cluster IP would not cause the DNS resolution to fail. An incorrect DNS entry would not cause the ping request to time out.
References: CompTIA Cloud+ CV0-003 Exam Objectives, Objective 2.2: Given a scenario, deploy and test a cloud solution ; Configuring clusters, scaling, and monitoring for hybrid api management ...1 ; CompTIA Cloud+ : Cloud High Availability & Scaling - Skillsoft2